January 23, 2011 San Diego, CA. The start of the half marathon. Sunday was the running of the Tri-City Medical Center Carlsbad Marathon and Half-Marathon. More than 1,500 participated in the full marathon, which took off at 6 a.m. and over 8,500 ran the half marathon, which launched several waves of runners at 7:30 a.m. Both events had three-peat champions, while several local first time marathoners smoked to excellent finishes. Mandatory photo credit: Peggy Peattie/San Diego Union-Tribune/ZUMA Press; Copyright San Diego Union-Tribune Publishing Co.

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January 23, 2011 San Diego, CA. The start of the half marathon. Sunday was the running of the Tri-City Medical Center Carlsbad Marathon and Half-Marathon. More than 1,500 participated in the full marathon, which took off at 6 a.m. and over 8,500 ran the half marathon, which launched several waves of runners at 7:30 a.m. Both events had three-peat champions, while several local first time marathoners smoked to excellent finishes. Mandatory photo credit: Peggy Peattie/San Diego Union-Tribune/ZUMA Press; Copyright San Diego Union-Tribune Publishing Co.